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Tanya [424]
3 years ago
10

If a rectangle is rotated about the y-axis as shown below, what three-dimensional figure would be formed?

Mathematics
1 answer:
Xelga [282]3 years ago
5 0

Answer:

Cylinder.  The explanation is not very exact, more intuition and whatnot, so let me know if there was anything you did not understand.  

Step-by-step explanation:

This is assuming the rectangle has its sides parallel with the x and y axes.  

Let's try to eliminate them one by one.  A cone does not seem likely since it has slanted sides, and spinning the two straight sides will keep the sides straight.  This can be used for the pyramid as well.  Let me know if this doesn't make sense though.

Now for me I would imagine that rectangle being a sheet of paper, or metal.  if you set that sheet atop some dirt or something and then rotated it, what shape would be drawn into the material?  It would be a circle.  So we know the 3d shapewill have a base of a circle, which leaves us with a cylinder.  Again, let me know if this method did not make sense.  

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Can someone help me with this math homework please!
azamat

It is not necessary that the function decreasing over a given interval always be negative.

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2 years ago
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The odds in favor of a spinner landing on blue is 2:7. What is the probability of a spinner NOT landing on blue?
Doss [256]

Answer:

7/9

Step-by-step explanation:

P(blue) = 2:7

This means there are 2 blue parts for every 7 nonblue parts. So 9 parts total! 2:7, then, should be thought of as 2/9.

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3 years ago
What is the measure of JK 37
Lelechka [254]

Answer:

Step-by-step explanation:

Lets x =measure of arc JK

37 = 1/2 (45 + x)

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answer

B. 29

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3 years ago
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Write fifty two and 40 hundredths in the standard form decimal ​
Mashutka [201]

Answer:

52.4

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